Wrench.



JOHAN HAUGLAND AND HERBRAN BRAATEN, OF BROOKLYN, NEW YORK.

WRENCH.

Specification of Letters Patent.

Patented July 21, 1908.

Application filed December 12, 1907. Serial No. 406,162.

To all whom it may concern.'

Be it known that we, JOHAN HAUGLAND and HERBRAN BRAATEN, subjects of the 'King of Norway, residing at Brooklyn, New York, have invented certain new and useful Imrovements in Wrenches, of which the folowing is a specification.

The present invention relates to wrenches of the kind commonly termed monkey wrenches.

The principal object of the invention is to provide a wrench having means for firmly and rigidly holding the jaws in the position in which they are set.

A further object is to improve the detailed construction of a wrench of this character and other objects will be disclosed in the following description.

The invention comprises the several features of construction and combinations of parts more fully hereinafter referred to and particularly pointed out in the claims.

One embodiment of the invention is shown in the accompanying sheet of drawing, wherein Figure 1 is a side elevational view of an improved wrench. Fig. 2 is a view illustrating the means employed for uniting the wrench parts and for locking the jaws in position. Fig. 3 is a vertical sectional view through approximately the central part of the wrench; Fig. 4 is a horizontal sectional view on the line 4-4 of Fig. 1 5 and Fig. 5 is a detail view of the upper part of the handle taken on the opposite side from Fig. 2.

Having reference to the drawing, 1 designates the upper wrench jaw united to or formed integrally with the shank 2 which is provided throughout a portion of its length with segmental screw threads 3. Telescoping with the shank 2 and arranged slidably in relation thereto is the sleeve 3 carrying the other jaw 4.

The screw threaded portion of the shank 2 is designed to engage corresponding screw threads 5 formed interiorly upon the handle 6 and it will be understood that revolution of the handle in proper direction will raise or lower the jaw 1 relatively to the jaw 4.

It is the purpose of the invention to have the sleeve 3 and the handle 6 held in loose contact in such a manner that while these parts are joined, the handle nevertheless may be revolved and this purpose is accomplished by providing the sleeve 3 at or near its lower portions with a reduced part or annular recess 7 and therebelow a head 8 and also providing the handle 6 near 'its upper end with a reduced part o r annular recess 9 and there- .a ilange 12, the construction being such that the heads 8 and 10 of the sleeve 3 and handle 6, respectively, are placed in contact and held together in the space formed between the upper and lower llanges 12 of the members 11.

The upper flange 12 of each cylindrical member 11 is provided with an orifice 13 into which enters a pin 14 formed on the reduced part 7 of the sleeve 3. When the sleeve 3 and handle 6 have been joined by the cylindrical members 11, an ternally screw threaded sleeve 14 is placed over the latter and secured in position by means of a suitable screw 15 passing through the sleeve and into an appropriate ori'lice in one of the cylindrical members.

From the construction just described, it will be noted that while the sleeve 3 and cylindrical members 11 are revented from movement in relation to eac other by the inter-engagement of pins' 14 and orifices 13, the handle 6 is not secured but may rotate in relation to the sleeve 3', and in this manner raise or lower the aw 1 and its depending shank 2.

The lower edge of the lower flange 12 on each cylindrical member 11 is provided with notches 16 into which are adapted to enter correspondingly formed teeth 17 upon the 'upper edge of a locking ring 18 encircling the reduced portion 9 of the sleeve 6.

Formed in the part 9 is an L-shaped slot 19 and projecting inwardly from the locking ring 18 is a pin or screw 20 which is designed to travel or to be moved in the slot 19. Opposite the slot 19 the head 10 is slotted at 19, this slot being provided to allow of a pin 20 held in the locking ring 18 being moved up or down when the locking ring is put on or taken off the wrench. Formed intermediate the head 10 and the shoulder 21 on the handle 6 is a collar 22 (slotted in two places in alinement with the slots 19 and 19') against which one end of a coiled outer preferably inspring 23 rests, the other end oi' the spring resting against the shoulder 21. The coiled spring 23 has a normal tendency to force the locking ring 18 up into engagement with the cylindrical members 11 causing the teeth on the locking ring to enter the notches in the cylindrical member and thus to lock the jaws in set position.

By drawing the locking ring 18 down- 1? wardly and giving it a short turn, the screw or pin 2O is caused to ride and be caught in the horizontal portion of the slot 19, thus permitting the handle 6 to be freely rotated,

and as a consequence permitting the jaw 1 1% Vto be raised or lowered at will.

We have found it expedient to slot the head 1() as described to enable the locking ring 18 to be easily removed from the handle, and while but one pin or screw 20 is neces- 23 sary for locking purposes we provide the two pins 2() and 20 in order that the spring 23 may be uniformly compressed, it being understood that the inner end of pin 20 is a little short oi' being flush with the outer sur- 25 face of 9. f

The lower edge of the ring 18 is preferably lnurled or abraded at 24 to give a better finger hold.

It will be apparent from the foregoing 3@ description, that while our invention is simple in construction and operation, it possesses decided advantages over present forms of similar devices, the 'facility with which the jaw members may be locked relatively to each other and the rigidity of the lock when effected being particularly desirable adjuncts of the invention.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is z 1 ln awrench, the combination with a handle provided with an annular recess, of a jaw member having a depending sleeve provided with an annular recess, and means for loosely uniting the handle and sleeve comprising a sectional cylindrical member having inwardly extending flanges designed to engage said recesses.

2. In a wrench, the combination with a handle provided with an annular recess near one end thereof, of a jaw member having a depending sleeve provided with an annular recess near its lower end and a pin vprojecting outwardly in said last mentioned recess, and means for uniting said sleeve and handle whereby the latter may have free rotative movement, said means comprising a cylindrical member having flanges designed to enter said recesses, one of said flanges having a perforation for the reception of said pin.

3. ln a wrench, the combination with a handle provided with an annular recess, of a jaw member having a depending sleeve provided with an annular recess, means for unit- 65 ing said sleeve and handle comprising a cylindrical externally screw threaded member having inwardly extending flanges designed to engage the said recesses, and an internally screw threaded sleeve adapted to engage said cylindrical member.

4. ln a wrench, the combination with a pair of jaw members one of which has a depending sleeve provided with an annular recess, a handle having an annular recess, a cylindrical member having one edge notched and being provided with inwardly extending flanges for engaging said recesses, and a locking ring having a' toothed edge, the teeth whereof are adapted to engagel the notches of the cylindrical member for locking the jaw 30 members in set position.

5. In a wrench, the combination with a pair of jaw members one of which has a depending sleeve provided with an annular recess, a handle having an annular recess, a cyg5 lindrical member having one edge notched and being provided with inwardly extending flanges for engaging said recesses, a locking. ring having a toothed edge adapted to engage the notches of the cylindrical member, 9'()V and a spring for Jforcing said locking ring into engagement with the cylindrical member.

6. ln a wrench, the combination with a pair of jaw members one of which has a depending sleeve provided with an annular recess, of a handle having an annular recess, means for uniting the sleeve and handle comprising a cylindricalmember having flanges for engaging the recesses, a locking ring for locking the jaw members in set position, a collar arranged in the recess in the handle, and a coiled spring bearing against said collar and being adapted to move the locking ring into loclzing'position.

7. ln a wrench, the combination with a pair of jaw members one of which has a depending sleeve provided with an annular recess, a handle having an annular recess and an L-shaped slot, a cylindrical member hav ing inwardly extending Hanges for engaging the said recesses, and a reciprocable and revoluble locking ring having an inwardly projecting pin designed to travel in the L-shaped slot in the handle.

8. ln a wrench, the combination with a pair of jaws, one of which is provided with a depending sleeve, a handle, a two part cylindrical connecting membery for holding the sleeve and handle together, notches provided upon the lower edge of said cylindrical member and a locking ring having teeth, which when they enter the notches in the cylindrical member, are adapted to lock the jaws in set position and prevent rotation of the handle.

9. ln a wrench, the combination with a jaw carrying a shank, a second jaw having a sleeve in which the shank of the first mentioned jaw is designed to reciprocate, a head formed upon the sleeve and a reduced portion in rear .of the head, a handle having a head at its upper part and a reduced portion l formed in the lower edge of the cylindrical in rear thereof, a cylindrical connecting connecting member. member having inwardly extendlng flangesl In testimony whereof we have aflxed our designed to engage the said heads and hold slgnatures in presence of two witnesses. 5 the sleeve and handle together, a locking JOHAN HAUGLAND. rlng having an lnwardly projecting pln adapty ed to enter an L-shaped slot in the handle, a HERBRAN BRAATEN coiled spring surrounding the reduced portion Witnesses:

of the handle, and teeth upon the upper edge ED. J. FANDREY,

10 of the locking ring designed to enter notches OTTO MUNK. 

